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Metamorphic Rock Identification Chart COMPOSITION TYPE PARENT ROCK ROCK NAME slaty mica Regional Mudstone Slate phyllitic quartz, mica, chlorite Regional Mudstone Phyllite schistose mica, quartz Regional Slate Schist schistose amphibole, plagioclase Regional Basalt or Gabbro Amphibolite gneissic banding feldspar, mica, quartz Regional Schist Gneiss carbon Contact or Regional Bituminous Coal Anthracite Coal quartz, rock fragments Contact or Regional calcite Contact or Regional Limestone Marble quartz Contact or Regional Sandstone Quartzite TEXTURE FOLIATION Foliated NonFoliated Conglomerate Metaconglomerate
